Fire near Niassa (MZ)

12.38°S, 37.60°E · first detected on 3 October at 13:25

What the satellites measured

This fire was tracked from 3 October at 13:25 to 21 October at 13:32, that is 18 days, through 546 satellite detections. The detected extent reaches 9,286 ha.

Detected extent: 9,286 ha
Cumulative power: 7,090 MW
Peak power, one pixel: 140 MW
VIIRS and MODIS detections: 546
Estimated emissions: 13.7 kt of carbon; Carbon burnt in the 0.1 degree cells (about 10 km) around the fire, from 5 October 2026 to 21 October 2026. An order-of-magnitude estimate from GFAS (ECMWF, Copernicus CAMS): it also counts neighbouring fires in the same cell. Contains modified Copernicus Atmosphere Monitoring Service information (2026).

These four figures cover the polar orbits alone, the ones that measure an area. The pass table below also counts geostationary detections, more frequent but too coarse for geometry, and its power column sums a whole pass where the peak above is that of a single pixel.

“Detected extent” is not “burned area”: it is the union of the ground footprints of the satellite pixels, and a pixel counts in full (375 m for VIIRS, 1 km for MODIS) even when only a forest edge is burning. Compared with press figures it is in practice one and a half to three times the area reported. Detections taken at the edge of the scan swath, too coarse to measure anything at all, are excluded. These figures come from thermal detection and are not an official assessment: only the emergency services and the competent authorities are authoritative.

Replay how the fire spread

The map is framed on this fire's footprint and loads only its detections. The timeline below covers the period in which satellites saw it, from the first to the last detection, with twelve hours before and twenty-four after; the ticks on the bar mark the emergency services' announcements that fall within it. The cursor opens on the most powerful pass, and playback replays the whole fire in about thirty seconds. “1 h” shows what is burning within an hour of the chosen moment : the map then follows the power curve below and empties when it falls. “24 h” stacks twenty-four hours : a fire stays visible between two satellite passes, which come two to four times a day. Both are true, but they say different things.

How the radiative power evolved

One point per satellite pass: the sum of the fire radiative power measured over the fire. This is the curve that says whether the fire eased off or picked up again, which no cumulative figure shows. The window covers 21 days; beyond that, clustering would merge two successive fires in the same place.

Fire dynamics

Loading history…

Satellite passes in detail

Pass	Power summed over the pass	Detections	Sensor
21 October at 13:32	7 MW	1	N21
20 October at 15:23	18 MW	1	Met12
20 October at 12:47	45 MW	3	N
20 October at 12:11	70 MW	3	N21
20 October at 11:23	23 MW	1	Met12
20 October at 10:53	49 MW	2	Met12
20 October at 01:18	5 MW	2	N21
20 October at 00:33	3 MW	2	N20
20 October at 00:14	1 MW	1	N
19 October at 16:13	25 MW	2	Met12
19 October at 16:03	36 MW	3	Met12
19 October at 15:23	36 MW	2	Met12
19 October at 15:13	213 MW	4	Met12
19 October at 14:53	36 MW	1	Met12
19 October at 14:13	143 MW	3	Met12
19 October at 14:03	163 MW	4	Met12
19 October at 13:33	210 MW	3	Met12
19 October at 13:25	178 MW	5	N20
19 October at 13:13	55 MW	1	Met12
19 October at 13:06	7 MW	1	N
19 October at 12:30	268 MW	4	N21
19 October at 12:13	34 MW	1	Met12
18 October at 13:25	206 MW	6	N
18 October at 01:12	2 MW	1	N20
17 October at 13:45	21 MW	2	N
17 October at 13:08	16 MW	1	N21
17 October at 12:24	30 MW	4	N20
16 October at 12:41	16 MW	2	N20
16 October at 12:21	35 MW	4	N
16 October at 01:31	1 MW	1	N
16 October at 00:52	3 MW	2	N21
16 October at 00:08	1 MW	1	N20
15 October at 13:47	26 MW	2	N21
15 October at 13:02	32 MW	2	N20
15 October at 12:43	4 MW	1	N
14 October at 13:19	88 MW	8	N20
14 October at 13:00	83 MW	4	N
14 October at 12:24	87 MW	10	N21
14 October at 00:46	9 MW	7	N20
14 October at 00:27	4 MW	6	N
13 October at 15:31	253 MW	4	Aqua
13 October at 13:38	337 MW	22	N20
13 October at 07:44	12 MW	1	Terra
12 October at 13:02	89 MW	11	N21
12 October at 01:24	3 MW	2	N20
12 October at 01:03	8 MW	6	N
12 October at 00:29	4 MW	2	N21
11 October at 13:55	452 MW	49	N
11 October at 13:19	318 MW	33	N21
11 October at 12:36	318 MW	37	N20
11 October at 08:05	68 MW	6	Terra
11 October at 01:41	6 MW	4	N20
11 October at 01:22	46 MW	20	N
11 October at 00:46	29 MW	12	N21
11 October at 00:01	12 MW	6	N20
10 October at 15:14	334 MW	10	Aqua
10 October at 13:38	847 MW	61	N21
10 October at 12:56	443 MW	33	N20
10 October at 12:36	120 MW	15	N
10 October at 03:05	5 MW	1	Aqua
10 October at 01:03	86 MW	11	N21
10 October at 00:20	25 MW	6	N20
9 October at 13:57	442 MW	13	N21
9 October at 13:13	463 MW	34	N20
9 October at 12:53	392 MW	37	N
9 October at 12:17	632 MW	21	N21
6 October at 13:49	20 MW	5	N
6 October at 13:15	131 MW	4	N21
5 October at 12:47	13 MW	2	N20
3 October at 20:02	14 MW	1	Terra
3 October at 13:25	9 MW	1	N20

8 other fires near Niassa (MZ)

Separate fires, apart in time or in space, not pieces of this one. A single municipality can have several over one summer, and a forest massif often covers more than a hundred square kilometres.

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